Tank Dewatering Valve Selection Starts With the Process
A tank dewatering valve cannot be sized from the outlet flange alone. Gather liquid, interface, hydraulic and maintenance data first.
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Oil–Water Interface Measurement: Ask the Right Question
Boundary, emulsion and local composition are different oil–water interface measurements. Define the control decision before choosing a sensor.
MLSS and Sludge Blanket Checks: Ask the Right Field Question
Portable MLSS and sludge-blanket readings answer different wastewater questions. Here is how to make both useful during a site round.
Portable Checks for Online Water Monitoring: A Practical Comparison
How to compare portable field results with online water-quality readings without mistaking a sampling difference for an analyser fault.
Online Colorimetric Analysis: Sample, Chemistry and Optics
A practical PMA explanation of how an online colorimetric analyser turns a representative water sample and controlled reagent reaction into a result.
Iron Monitoring After Ferric Dosing: Specify the Result First
A PMA guide to choosing an iron measurement point and method after ferric dosing, with attention to sample conditioning and like-for-like verification.
Oil-in-Water Testing: Why Lab and Fluorescence Results Differ
PMA explains why gravimetric laboratory results and UV fluorescence trends can differ, and how to compare them using representative samples.
SV30 vs SVI: Reading Settlement and Solids Together
Understand how settled sludge volume and Sludge Volume Index differ, why MLSS matters, and how to keep treatment-works trends comparable.
Phosphate Reagent Kits: What to Check Before You Order
A PMA checklist for matching phosphate reagent kits to the analyser model, method, working range and reporting basis.
Slurry Density Monitoring: From Trend to Control Decision
A practical PMA guide to turning slurry density data into trustworthy trends, useful alarms and carefully validated control decisions.
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